Bipolar side protection device for fully-mechanized coal mining conveyor end frame

Abstract

The utility model discloses a dipolar side protection device for an end frame of a fully-mechanized coal mining conveyor. The dipolar side protection device comprises a bracket top beam arranged on the end frame of the fully-mechanized coal mining conveyor, a second-stage side protection mechanism is hinged to the support top beam and comprises a first-stage side protection plate hinged to the support top beam and a second-stage side protection plate hinged to the first-stage side protection plate; the second-stage side protection mechanism further comprises a plurality of first-stage hydraulic cylinders used for pushing the first-stage side protection plates to be opened. The second-stage side protection mechanism further comprises a plurality of second-stage hydraulic cylinders used for pushing the second-stage side protection plates to be opened. A cylinder barrel of the first-stage hydraulic cylinder is hinged to the support top beam, a piston rod of the first-stage hydraulic cylinder is hinged to the first-stage side protection plate, a cylinder barrel of the second-stage hydraulic cylinder is hinged to the first-stage side protection plate, and a piston rod of the second-stage hydraulic cylinder is hinged to the first-stage side protection plate. According to the device, labor is saved, the process of opening and withdrawing the side protection plate is simple and rapid, and flexible supporting of the roadway environment with the complex geographical environment can be coped in the fully-mechanized coal mining operation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of comprehensive mining support, in particular to a two-pole side protection device for a comprehensive mining conveyor end frame. Background Art

[0002] During the production process of the fully mechanized mining face, the conveyor machine rises and falls, and when the end frame on the conveyor machine is more than 0.8m away from the roadway wall, the coal mine safety regulations require support. At present, the more conventional support method is to implement it in the form of single-unit support. However, due to the narrow passage, the labor intensity of single-unit transportation, support, and withdrawal is high, and once the support area is located in a dangerous area, such as near the Laotang collapse area, when the roof conditions of the working face are poor, the withdrawn single unit faces huge safety risks such as roof collapse and falling gangue, and sometimes the only choice is to abandon the single unit.

[0003] Furthermore, it was found in actual work that when the end frame on the conveyor is too far away from the side of the lane, it is difficult for the single guard plate installed on the conveyor to effectively support the side of the lane. If the guard plate with a larger size is disassembled and replaced, not only is the operation cumbersome, but also, since the width of the lane is often constantly changing, if the conveyor moves to a narrow area again, it is necessary to replace the guard plate with a smaller size again. This repetitive process not only causes the conveyor to be unable to operate normally in the lane, but also, in the face of the lane environment with complex geographical environment, it is difficult to achieve flexible and efficient way to support the side of the lane in an adjustable manner while walking according to the width of the lane.

[0004] At the same time, during the operation of the conveyor, once the guard plate is retracted, the fallen gangue can easily hit the single guard plate, and the high-intensity impact causes the guard plate to deform. When the deformed guard plate is supported again, hollow positions exist in its supporting part, and the support stability is not high. Utility Model Content

[0005] Based on the above background, the purpose of the utility model is to provide a two-pole side protection device for the end frame of a fully mechanized mining conveyor.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] A two-pole side protection device for a fully mechanized mining conveyor end frame, comprising a support top beam installed on the fully mechanized mining conveyor end frame;

[0008] A secondary side guard mechanism is hinged on the top beam of the support, and the secondary side guard mechanism includes a primary side guard plate hingedly mounted on the top beam of the support and a secondary side guard plate hinged on the primary side guard plate;

[0009] The secondary side guard mechanism also includes a plurality of primary hydraulic cylinders for pushing the primary side guard plates to open, and the secondary side guard mechanism also includes a plurality of secondary hydraulic cylinders for pushing the secondary side guard plates to open;

[0010] The cylinder barrel of the first-level hydraulic cylinder is hinged on the top beam of the support, the piston rod of the first-level hydraulic cylinder is hinged on the first-level side guard plate, the cylinder barrel of the second-level hydraulic cylinder is hinged on the first-level side guard plate, and the piston rod of the second-level hydraulic cylinder is hinged on the first-level side guard plate.

[0011] Preferably, the primary side guard plate is hinged to the top beam of the bracket through a plurality of pins;

[0012] The secondary side guard plate is hinged on the primary side guard plate through a plurality of pins.

[0013] Preferably, the piston rod of the primary hydraulic cylinder is hinged on the ear seat fixedly connected to the primary side guard plate, and a pin is fixedly connected to the cylinder barrel of the primary hydraulic cylinder, and the pin is hinged on the ear seat on the top beam of the bracket;

[0014] The piston rod and the cylinder barrel of the secondary hydraulic cylinder are respectively hinged on the secondary side guard plate and the primary side guard plate through a pin shaft.

[0015] Preferably, a first reinforcing rib structure is fixedly connected to the primary side guard plate.

[0016] Preferably, the first reinforcing rib structure comprises a first longitudinal rib plate, a second longitudinal rib plate, a third longitudinal rib plate, a fourth longitudinal rib plate, and a fifth longitudinal rib plate which are sequentially arranged in parallel;

[0017] The first reinforcing rib structure also includes a transverse rib plate vertically connecting the first longitudinal rib plate, the second longitudinal rib plate, the third longitudinal rib plate, the fourth longitudinal rib plate, and the fifth longitudinal rib plate.

[0018] Preferably, the left and right sides of the primary side guard plate are also fixedly connected with staggered ribs respectively arranged on the left side of the first longitudinal rib and on the right side of the fifth longitudinal rib, and the staggered ribs are staggered with the transverse ribs.

[0019] Preferably, a second reinforcing rib structure is fixedly connected to the secondary side guard plate.

[0020] Preferably, the second reinforcing rib structure comprises a first longitudinal rib plate flush with the first longitudinal rib plate, a second longitudinal rib plate flush with the second longitudinal rib plate, a third longitudinal rib plate flush with the third longitudinal rib plate, a fourth longitudinal rib plate flush with the fourth longitudinal rib plate, and a fifth longitudinal rib plate flush with the fifth longitudinal rib plate;

[0021] The second reinforcing rib structure also includes a transverse fixed rib plate vertically fixedly connecting the first longitudinal rib plate to the fifth longitudinal rib plate.

[0022] Preferably, the secondary side guard mechanism comprises three primary hydraulic cylinders for pushing the primary side guard plates to open;

[0023] The secondary side guard mechanism includes three secondary hydraulic cylinders for pushing and opening the secondary side guard plates;

[0024] The first-level hydraulic cylinders are arranged at intervals, and the second-level hydraulic cylinders are arranged at intervals.

[0025] The utility model has the following beneficial effects:

[0026] 1. Through the cooperation of the first-level side guard plate, the second-level side guard plate and the first-level hydraulic cylinder and the second-level hydraulic cylinder, during the working process, the first-level hydraulic cylinder is opened to realize the synchronous working of the first-level hydraulic cylinder to open the first-level side guard plate, so as to realize the support work of opening the first-level side guard plate when the distance with the lane is 0.8-1.0m.

[0027] When the spacing is greater than 1.0m, the secondary hydraulic cylinder opens the secondary side guard plate to support the work.

[0028] The hydraulic opening method not only saves effort, but also makes the process of opening and retracting the side guard plates simple and quick, enabling flexible support in tunnel environments with complex geographical environments during comprehensive mining operations.

[0029] 2. The first reinforcing rib structure on the primary side guard plate is formed by the first longitudinal rib plate to the fifth longitudinal rib plate and the vertically staggered transverse rib plate to form a mechanical reinforcement structure. Specifically, the first longitudinal rib plate to the fifth longitudinal rib plate are used to strengthen the longitudinal anti-deformation force of the primary side guard plate, while the transverse rib plate forms the transverse anti-deformation force. Therefore, under the action of the grid-shaped reinforcing rib structure formed by the above-mentioned staggered rib plates and the first longitudinal rib plate to the fifth longitudinal rib plate, the anti-deformation force of the primary side guard plate is greatly improved.

[0030] Similarly, the deformation resistance of the secondary side guard plate is strengthened by the second reinforcing rib structure on the secondary side guard plate.

[0031] 3. The first side guard plate and the second side guard plate are integrated and reinforced by cooperating the first reinforcing rib structure with the second reinforcing rib. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the overall structure of the secondary side guard mechanism in the embodiment of the utility model when it is in an open state;

[0034] Figure 2 It is a structural schematic diagram of the secondary side guard mechanism in the embodiment of the utility model when it is in a retracted state;

[0035] Figure 3 This is a schematic structural diagram of the first reinforcing rib structure in an embodiment of the utility model;

[0036] Figure 4 This is a schematic structural diagram of the second reinforcing rib structure in an embodiment of the utility model;

[0037] Figure 5 It is a structural schematic diagram of the hydraulic pipeline system of the first-stage hydraulic cylinder and the second-stage hydraulic cylinder in the embodiment of the utility model.

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0042] Example 1

[0043] like Figure 1-5As shown, a diode side protection device for the end frame of a fully mechanized mining conveyor includes a support top beam 11 installed on the end frame 1 of the fully mechanized mining conveyor.

[0044] A secondary side guard mechanism is hinged on the bracket top beam 11, and the secondary side guard mechanism includes a primary side guard plate 2 hingedly mounted on the bracket top beam 11 and a secondary side guard plate 3 hinged on the primary side guard plate 2 (specifically: the secondary side guard plate 3 is hinged on the primary side guard plate 2 through a plurality of pins).

[0045] Specifically, during the operation, when the comprehensive mining conveyor is traveling in the tunnel, when the distance between the end frame and the tunnel is greater than 1m, the first-level side guard plate 2 and the second-level side guard plate 3 are used for synchronous support; when the distance is between 0.8-1.0m, the first-level side guard plate 2 is selected for support, and the second-level side guard plate 3 is retracted.

[0046] This method allows the primary side guard plates 2 and secondary side guard plates 3 to be flexibly selected according to the distance between the conveyor end frame and the tunnel while walking in the tunnel, thereby solving the technical defect that traditional single guard plates cannot be adjusted and need to frequently replace guard plates of different sizes for support during work.

[0047] Specifically, the secondary side guard mechanism also includes three primary hydraulic cylinders 21 for pushing the primary side guard plate 2 open (the three primary hydraulic cylinders 21 are distributed at intervals), and the secondary side guard mechanism also includes three secondary hydraulic cylinders 31 for pushing the secondary side guard plate 3 open (the three secondary hydraulic cylinders 31 are distributed at intervals).

[0048] The primary hydraulic cylinder 21 is hinged between the support top beam 11 and the primary side guard plate 2 in an intersecting manner, and the secondary hydraulic cylinder 31 is hinged between the primary side guard plate 2 and the secondary side guard plate 3 in an intersecting manner.

[0049] Specifically, the cylinder barrel of the first-level hydraulic cylinder 21 is hinged on the support top beam 11 (the cylinder barrel of the first-level side guard plate 2 is hinged on the support top beam 11 through a plurality of pins, and correspondingly, a matching ear seat is installed on the support top beam 11), and the piston rod of the first-level hydraulic cylinder 21 is hinged on the first-level side guard plate 2 through a pin (correspondingly, a matching ear seat is installed on the first-level side guard plate 2).

[0050] Similarly, the cylinder barrel of the secondary hydraulic cylinder 31 is hinged on the primary side guard plate 2, and the piston rod of the secondary hydraulic cylinder is hinged on the primary side guard plate 3. Similarly, the secondary hydraulic cylinder 31 is also hinged between the primary side guard plate 2 and the secondary hydraulic cylinder 31 through a pin shaft and an ear seat structure.

[0051] During the working process, the first-level hydraulic cylinder 21 is opened to realize the synchronous working of the first-level hydraulic cylinder 21 to open the first-level side guard plate 2, so as to realize the support work of opening the first-level side guard plate 2 when the distance with the lane is 0.8-1.0m.

[0052] When the spacing is greater than 1.0 m, the secondary hydraulic cylinder 31 opens the secondary side guard plate 3 to support the work.

[0053] The hydraulic opening method not only saves effort, but also makes the process of opening and retracting the side guard plates simple and quick, enabling flexible support in tunnel environments with complex geographical environments during comprehensive mining operations.

[0054] Example 2

[0055] like Figure 1-5 As shown, based on the structure of Example 1, this embodiment is designed to increase the structural strength of the primary side guard plates 2 and the secondary side guard plates 3 and to solve the technical defect that when the primary side guard plates 2 and the secondary side guard plates 3 are withdrawn, the gangue falls and hits the primary side guard plates 2 and the secondary side guard plates 3, causing the primary side guard plates 2 and the secondary side guard plates 3 to be deformed and unable to be stably supported. The primary side guard plates 2 and the secondary side guard plates 3 are structurally reinforced.

[0056] Specifically, a first reinforcing rib structure 4 is fixedly connected to the primary side guard plate 2 .

[0057] Specifically, the first reinforcing rib structure 4 includes a first longitudinal rib 41, a second longitudinal rib 42, a third longitudinal rib 43, a fourth longitudinal rib 44, and a fifth longitudinal rib 45 arranged in parallel in sequence; the first reinforcing rib structure 4 also includes a transverse rib 46 vertically connecting the first longitudinal rib 41, the second longitudinal rib 42, the third longitudinal rib 43, the fourth longitudinal rib 44, and the fifth longitudinal rib 45.

[0058] At the same time, the left and right sides of the primary side guard plate 2 are also fixedly connected with staggered ribs 47 respectively arranged on the left side of the first longitudinal rib and on the right side of the fifth longitudinal rib 45 , and the staggered ribs 47 are staggered with the transverse ribs 46 .

[0059] The first reinforcing rib structure 4 is formed by the first longitudinal rib plate 41 to the fifth longitudinal rib plate 45 and the transverse rib plate 46 arranged vertically and staggered to form a mechanical reinforcement structure. Specifically, the longitudinal anti-deformation force of the primary side guard plate 2 is strengthened by the first longitudinal rib plate 41 to the fifth longitudinal rib plate 45, and the transverse rib plate 46 forms a transverse anti-deformation force. Therefore, under the action of the grid-shaped reinforcing rib structure formed by the transverse rib plate 46 and the first longitudinal rib plate 41 to the fifth longitudinal rib plate 45, the anti-deformation force of the primary side guard plate 2 is greatly improved.

[0060] Example 3

[0061] like Figure 1-5 As shown, in this embodiment, based on the structure of embodiment 2, a second reinforcing rib structure 5 is fixedly connected to the secondary side guard plate 3 .

[0062] The specific structure of the second reinforcing rib structure 5 is:

[0063] The second reinforcing rib structure 5 includes a No. 1 longitudinal rib plate 51 which is arranged flush with the first longitudinal rib plate 41, a No. 2 longitudinal rib plate 42 which is arranged flush with the second longitudinal rib plate 42, a No. 3 longitudinal rib plate 53 which is arranged flush with the third longitudinal rib plate 43, a No. 4 longitudinal rib plate 54 which is arranged flush with the fourth longitudinal rib plate 44, and a No. 5 longitudinal rib plate 55 which is arranged flush with the fifth longitudinal rib plate 45; the second reinforcing rib structure 5 also includes a transverse fixed rib plate 56 which vertically fixedly connects the No. 1 longitudinal rib plate 51 to the No. 5 longitudinal rib plate.

[0064] By arranging the first to fifth longitudinal ribs 51 to 55 flush with the first to fifth longitudinal ribs 41 to 45 (i.e., located on the same straight line), the reinforcing rib structure is extended from the primary side guard plate 2 to the secondary side guard plate 3, and the reinforcing rib structure of the primary side guard plate 2 is coordinated with the reinforcing rib structure of the secondary side guard plate 3 to form an integrated reinforcement, so as to improve the synchronous anti-deformation ability of the primary side guard plate 2 and the secondary side guard plate 3 in response to the impact of gangue on the primary side guard plate 2 and the secondary side guard plate 3 by utilizing the synchronous and coordinated reinforcing rib structure.

[0065] Example 4

[0066] like Figure 1-5 As shown, based on the structure of Example 3, this embodiment discloses the hydraulic pipeline system of the above-mentioned primary hydraulic cylinder 21 and secondary hydraulic cylinder 31, specifically including an oil inlet pipeline and an oil outlet pipeline connected to the primary hydraulic cylinder 21 and the secondary hydraulic cylinder 31, and controlling the oil inlet and oil outlet through a valve system on the oil inlet pipeline and the oil outlet pipeline.

[0067] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A diode side protection device for the end frame of a fully mechanized mining conveyor, characterized in that: It includes a support top beam installed on the end frame of the fully mechanized mining conveyor; A secondary side guard mechanism is hinged on the top beam of the support, and the secondary side guard mechanism includes a primary side guard plate hingedly mounted on the top beam of the support and a secondary side guard plate hinged on the primary side guard plate; The secondary side guard mechanism also includes a plurality of primary hydraulic cylinders for pushing the primary side guard plates to open, and the secondary side guard mechanism also includes a plurality of secondary hydraulic cylinders for pushing the secondary side guard plates to open; The cylinder barrel of the first-stage hydraulic cylinder is hinged on the top beam of the support, the piston rod of the first-stage hydraulic cylinder is hinged on the first-stage side guard plate, the cylinder barrel of the second-stage hydraulic cylinder is hinged on the first-stage side guard plate, and the piston rod of the second-stage hydraulic cylinder is hinged on the first-stage side guard plate; A first reinforcing rib structure is fixedly connected to the primary side guard plate; The first reinforcing rib structure comprises a first longitudinal rib plate, a second longitudinal rib plate, a third longitudinal rib plate, a fourth longitudinal rib plate, and a fifth longitudinal rib plate which are arranged in parallel in sequence; The first reinforcing rib structure further includes a transverse rib plate vertically connecting the first longitudinal rib plate, the second longitudinal rib plate, the third longitudinal rib plate, the fourth longitudinal rib plate, and the fifth longitudinal rib plate; The left and right sides of the primary side guard plate are also fixedly connected with staggered ribs which are respectively arranged on the left side of the first longitudinal rib and on the right side of the fifth longitudinal rib. The staggered ribs are staggered with the transverse ribs.

2. The diode side protection device of the end frame of the fully mechanized mining conveyor according to claim 1 is characterized in that: The first-level side guard plate is hinged on the top beam of the bracket through a plurality of pins; The secondary side guard plate is hinged on the primary side guard plate through a plurality of pins.

3. The diode side protection device of the end frame of the fully mechanized mining conveyor according to claim 1 is characterized in that: The piston rod of the first-stage hydraulic cylinder is hinged on the ear seat fixedly connected to the first-stage side guard plate, and a pin is fixedly connected to the cylinder barrel of the first-stage hydraulic cylinder, and the pin is hinged on the ear seat on the top beam of the bracket; The piston rod and the cylinder barrel of the secondary hydraulic cylinder are respectively hinged on the secondary side guard plate and the primary side guard plate through a pin shaft.

4. The diode side protection device of the end frame of the fully mechanized mining conveyor according to claim 1 is characterized in that: A second reinforcing rib structure is fixedly connected to the secondary side guard plate.

5. The diode side protection device of the end frame of the fully mechanized mining conveyor according to claim 4 is characterized in that: The second reinforcing rib structure includes a first longitudinal rib plate flush with the first longitudinal rib plate, a second longitudinal rib plate flush with the second longitudinal rib plate, a third longitudinal rib plate flush with the third longitudinal rib plate, a fourth longitudinal rib plate flush with the fourth longitudinal rib plate, and a fifth longitudinal rib plate flush with the fifth longitudinal rib plate; The second reinforcing rib structure also includes a transverse fixed rib plate vertically fixedly connecting the first longitudinal rib plate to the fifth longitudinal rib plate.

6. The diode side protection device of the end frame of the fully mechanized mining conveyor according to claim 1 is characterized in that: The secondary side guard mechanism includes three primary hydraulic cylinders for pushing the primary side guard plates to open; The secondary side guard mechanism includes three secondary hydraulic cylinders for pushing and opening the secondary side guard plates; The first-level hydraulic cylinders are arranged at intervals, and the second-level hydraulic cylinders are arranged at intervals.

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